Mary Oberlin of Selinsgrove, Pennsylvania was lucky enough to receive this recipe from one of her friends. The perfect take-along for charity events and church potlucks, the comforting crowd-pleaser is sure to warm tummies on the coldest of winter nights.
Cook noodles according to package directions; drain. Add butter; toss to coat.
In a large skillet, cook beef over medium heat until no longer pink; drain. Spread a fourth of the spaghetti sauce into an ungreased 5-qt. slow cooker. Layer with a third of the noodles, a third of the beef, a third of the remaining sauce and a third of the cheeses. Repeat layers twice.
Cover and cook on low until cheese is melted and lasagna is heated through, about 3 hours.